;; The first four lines of this file were added by Dracula.
;; They tell DrScheme that this is a Dracula Modular ACL2 program.
;; Leave these lines unchanged so that DrScheme can properly load this file.
#reader(planet "reader.rkt" ("cce" "dracula.plt") "modular" "lang")
(interface Itree
  (sig data-to-avl (str))
  (sig get-data-list (str))
  (sig keys (tr))
  )
